Voice VLAN priority modification method on an AR router

Voice VLAN priority configuration methods for low-end AR devices and high-end AR devices are different.
- For high-end devices such as AR2200, AR3200, and AR3600, their chips support ACL. After an interface is added to the voice VLAN, packet priorities can be changed to 6 by default based on the ACL or defined by running the voice-vlan remark command.
- For low-end devices such as AR120, AR150, AR160, AR200, AR500, and AR1200, their chips do not support ACL. Therefore, packet priorities cannot be automatically changed but can be defined by running the vlan priority command.

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